diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/ide/ide-tape.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index e8a5852fa2d4..1ce8b31453c5 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c | |||
@@ -984,8 +984,10 @@ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) | |||
984 | ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); | 984 | ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); |
985 | 985 | ||
986 | /* Begin DMA, if necessary */ | 986 | /* Begin DMA, if necessary */ |
987 | if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) | 987 | if (pc->flags & PC_FLAG_DMA_OK) { |
988 | pc->flags |= PC_FLAG_DMA_IN_PROGRESS; | ||
988 | hwif->dma_ops->dma_start(drive); | 989 | hwif->dma_ops->dma_start(drive); |
990 | } | ||
989 | 991 | ||
990 | /* Send the actual packet */ | 992 | /* Send the actual packet */ |
991 | hwif->output_data(drive, NULL, pc->c, 12); | 993 | hwif->output_data(drive, NULL, pc->c, 12); |
@@ -1053,11 +1055,11 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, | |||
1053 | if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) | 1055 | if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) |
1054 | dma_ok = !hwif->dma_ops->dma_setup(drive); | 1056 | dma_ok = !hwif->dma_ops->dma_setup(drive); |
1055 | 1057 | ||
1058 | if (!dma_ok) | ||
1059 | pc->flags &= ~PC_FLAG_DMA_OK; | ||
1060 | |||
1056 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); | 1061 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); |
1057 | 1062 | ||
1058 | if (dma_ok) | ||
1059 | /* Will begin DMA later */ | ||
1060 | pc->flags |= PC_FLAG_DMA_IN_PROGRESS; | ||
1061 | if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) { | 1063 | if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) { |
1062 | ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc, | 1064 | ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc, |
1063 | IDETAPE_WAIT_CMD, NULL); | 1065 | IDETAPE_WAIT_CMD, NULL); |